215212234332 has 48 divisors (see below), whose sum is σ = 534085235712. Its totient is φ = 67214780160.

The previous prime is 215212234261. The next prime is 215212234381. The reversal of 215212234332 is 233432212512.

It is a self number, because there is not a number n which added to its sum of digits gives 215212234332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2319894 + ... + 2410877.

It is an arithmetic number, because the mean of its divisors is an integer number (11126775744).

Almost surely, 2^215212234332 is an apocalyptic number.

It is an amenable number.

215212234332 is an abundant number, since it is smaller than the sum of its proper divisors (318873001380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215212234332 is a wasteful number, since it uses less digits than its factorization.

215212234332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4731018 (or 4731016 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

Adding to 215212234332 its reverse (233432212512), we get a palindrome (448644446844).

The spelling of 215212234332 in words is "two hundred fifteen billion, two hundred twelve million, two hundred thirty-four thousand, three hundred thirty-two".